Analyte monitoring device and methods of use
First Claim
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1. A device, comprising:
- an implantable sensor configured to continuously measure in vivo signals associated with an analyte concentration; and
a membrane located over the sensor;
wherein the implantable sensor is configured to generate signals associated with the analyte concentration having a level of accuracy corresponding to a mean absolute relative difference, wherein the level of accuracy increases on subsequent days during a sensor session of at least 3 days, wherein one or more reference measurements associated with a calculation of the mean absolute relative difference are determined by analysis of blood.
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Abstract
An analyte monitor including a sensor, a sensor control unit, and a display unit is disclosed. The analyte monitor may also be part of a drug delivery system to alter the level of the analyte based on the data obtained using the sensor.
2488 Citations
30 Claims
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1. A device, comprising:
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an implantable sensor configured to continuously measure in vivo signals associated with an analyte concentration; and a membrane located over the sensor; wherein the implantable sensor is configured to generate signals associated with the analyte concentration having a level of accuracy corresponding to a mean absolute relative difference, wherein the level of accuracy increases on subsequent days during a sensor session of at least 3 days, wherein one or more reference measurements associated with a calculation of the mean absolute relative difference are determined by analysis of blood. - View Dependent Claims (2, 3, 4)
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5. A device, comprising:
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an implantable sensor configured to continuously measure in vivo signals associated with an analyte concentration; and a membrane located over the sensor; wherein, over a sensor session of at least 3 days, the implantable sensor is configured to generate signals associated with the analyte concentration; having a level of accuracy corresponding to a first mean absolute relative difference value during a first time period, wherein one or more reference measurements associated with a calculation of the first mean absolute relative difference value are determined by analysis of blood; and having a level of accuracy corresponding to a second mean absolute relative difference value at analyte concentrations during a second time period, wherein one or more reference measurements associated with a calculation of the second mean absolute relative difference value are determined by analysis of blood; wherein the first time period precedes the second time period, and further, wherein the first mean absolute relative difference value is greater than the second mean absolute relative difference value. - View Dependent Claims (6, 7, 8, 9)
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10. A system, comprising:
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an implantable sensor comprising a sensing region configured to continuously produce in vivo sensor data associated with an analyte concentration, wherein the sensor further comprises a membrane located over the sensing region; a processor configured to process continuous sensor data; and a user interface configured to display information associated with the continuous sensor data; wherein the sensor is configured to produce sensor data associated with the analyte concentration having a level of accuracy corresponding to a mean absolute relative difference, wherein the level of accuracy increases on subsequent days during a sensor session of at least 3 days, wherein one or more reference measurements associated with a calculation of the mean absolute relative difference are determined by analysis of blood. - View Dependent Claims (11, 12, 13)
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14. A system, comprising:
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an implantable sensor comprising a sensing region configured to continuously produce in vivo a signal associated with an analyte concentration, wherein the sensor further comprises a membrane located over the sensor; a processor configured to process continuous sensor data; and a user interface configured to display information associated with the continuous sensor data; wherein, over a sensor session of at least 3 days, the implantable sensor is configured to generate signals associated with the analyte concentration; having a level of accuracy corresponding to a first mean absolute relative difference value during a first time period, wherein one or more reference measurements associated with a calculation of the first mean absolute relative difference value are determined by analysis of blood; and having a level of accuracy corresponding to a second mean absolute relative difference value during a second time period, wherein one or more reference measurements associated with a calculation of the second mean absolute relative difference value are determined by analysis of blood; wherein the first time period precedes the second time period, and further, wherein the first mean absolute relative difference value is greater than the second mean absolute relative difference value. - View Dependent Claims (15, 16, 17, 18)
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19. A device, comprising:
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an implantable sensor configured to continuously measure signals associated with an analyte concentration; and a membrane located over the sensor, wherein the membrane comprises a polyurethane portion; wherein the implantable sensor is configured to generate signals associated with the analyte concentration having a level of accuracy corresponding to a mean absolute relative difference, wherein the level of accuracy increases on subsequent days during a sensor session of at least 3 days, wherein one or more reference measurements associated with a calculation of the mean absolute relative difference are determined by analysis of blood. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A system, comprising:
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a sensor comprising; a sensing region configured to continuously produce sensor data associated with an analyte concentration; and a membrane located over the sensing region, wherein the membrane comprises a polyurethane portion; a processor configured to process continuous sensor data; and a user interface configured to display information associated with the continuous sensor data; wherein the sensor is configured to produce sensor data associated with the analyte concentration having a level of accuracy corresponding to a mean absolute relative difference, wherein the level of accuracy increases on subsequent days during a sensor session of at least 3 days, wherein one or more reference measurements associated with a calculation of the mean absolute relative difference are determined by analysis of blood. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification